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    <script>
        // 4. var arr = [10,15,2,32,5,4,20,8,48,54,6];找出数组中小于10 的数据，并组成一个新的数组
        // 得到新的数组：[2, 5, 4, 8, 6]

        var arr = [10,15,2,32,5,4,20,8,48,54,6]
        var arr1 =[]
        for(var i = 0;i < arr.length;i++){
            // 判断数据是否小于10
            if(arr[i] < 10){
                arr1.push(arr[i])
            }
        }
        console.log(arr1)
    </script>
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